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Bug#14683676 ENDLESS MEMORY CONSUMPTION IN SETUP_REF_ARRAY WITH MAX IN SUBQUERY

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n_child_sum_items kept increasing.
Since it is used for calculating the size of ref_pointer_array,
we will allocate larger and larger chunks of memory, until we hit some
operating system limit.
The memory is free()d at disconnect, but is most likely *not*
returned to the operating system.
This commit is contained in:
Tor Didriksen 2012-10-01 13:12:38 +02:00
parent eff72188b1
commit 4d29767e6c
1 changed files with 1 additions and 0 deletions
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sql/sql_lex.cc
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@ -1616,6 +1616,7 @@ void st_select_lex::init_query()
ref_pointer_array= 0;
select_n_where_fields= 0;
select_n_having_items= 0;
n_child_sum_items= 0;
subquery_in_having= explicit_limit= 0;
is_item_list_lookup= 0;
first_execution= 1;